<?php
/*
 * CKFinder
 * ========
 * http://ckfinder.com
 * Copyright (C) 2007-2011, CKSource - Frederico Knabben. All rights reserved.
 *
 * The software, this file and its contents are subject to the CKFinder
 * License. Please read the license.txt file before using, installing, copying,
 * modifying or distribute this file or part of its contents. The contents of
 * this file is part of the Source Code of CKFinder.
 */
if (!defined('IN_CKFINDER')) exit;

/**
 * @package CKFinder
 * @subpackage CommandHandlers
 * @copyright CKSource - Frederico Knabben
 */

/**
 * Include base XML command handler
 */
require_once CKFINDER_CONNECTOR_LIB_DIR . "/CommandHandler/XmlCommandHandlerBase.php";

/**
 * Handle GetFolders command
 *
 * @package CKFinder
 * @subpackage CommandHandlers
 * @copyright CKSource - Frederico Knabben
 */
class CKFinder_Connector_CommandHandler_GetFolders extends CKFinder_Connector_CommandHandler_XmlCommandHandlerBase
{
	/**
	 * Command name
	 *
	 * @access private
	 * @var string
	 */
	var $command = "GetFolders";

	/**
	 * handle request and build XML
	 * @access protected
	 *
	 */
	function buildXml()
	{
		$_config =& CKFinder_Connector_Core_Factory::getInstance("Core_Config");
		if (!$this->_currentFolder->checkAcl(CKFINDER_CONNECTOR_ACL_FOLDER_VIEW)) {
			$this->_errorHandler->throwError(CKFINDER_CONNECTOR_ERROR_UNAUTHORIZED);
		}

		// Map the virtual path to the local server path.
		$_sServerDir = $this->_currentFolder->getServerPath();

		if (!is_dir($_sServerDir)) {
			$this->_errorHandler->throwError(CKFINDER_CONNECTOR_ERROR_FOLDER_NOT_FOUND);
		}

		// Create the "Folders" node.
		$oFoldersNode = new Ckfinder_Connector_Utils_XmlNode("Folders");
		$this->_connectorNode->addChild($oFoldersNode);

		$files = array();
		if ($dh = @opendir($_sServerDir)) {
			while (($file = readdir($dh)) !== false) {
				if ($file != "." && $file != ".." && is_dir($_sServerDir . $file)) {
					$files[] = $file;
				}
			}
			closedir($dh);
		} else {
			$this->_errorHandler->throwError(CKFINDER_CONNECTOR_ERROR_ACCESS_DENIED);
		}

		$resourceTypeInfo = $this->_currentFolder->getResourceTypeConfig();

		if (sizeof($files)>0) {
			natcasesort($files);
			$i=0;
			foreach ($files as $file) {
				$oAcl = $_config->getAccessControlConfig();
				$aclMask = $oAcl->getComputedMask($this->_currentFolder->getResourceTypeName(), $this->_currentFolder->getClientPath() . $file . "/");

				if (($aclMask & CKFINDER_CONNECTOR_ACL_FOLDER_VIEW) != CKFINDER_CONNECTOR_ACL_FOLDER_VIEW) {
					continue;
				}
				if ($resourceTypeInfo->checkIsHiddenFolder($file)) {
					continue;
				}

				// Create the "Folder" node.
				$oFolderNode[$i] = new Ckfinder_Connector_Utils_XmlNode("Folder");
				$oFoldersNode->addChild($oFolderNode[$i]);
				$oFolderNode[$i]->addAttribute("name", CKFinder_Connector_Utils_FileSystem::convertToConnectorEncoding($file));
				$oFolderNode[$i]->addAttribute("hasChildren", CKFinder_Connector_Utils_FileSystem::hasChildren($_sServerDir . $file) ? "true" : "false");
				$oFolderNode[$i]->addAttribute("acl", $aclMask);

				$i++;
			}
		}
	}
}
